/*
* $Header: /home/cvspublic/jakarta-slide/src/stores/org/apache/slide/store/impl/rdbms/J2EEStore.java,v 1.10.2.1 2004/02/05 16:07:52 mholz Exp $
* $Revision: 1.10.2.1 $
* $Date: 2004/02/05 16:07:52 $
*
* ====================================================================
*
* Copyright 1999-2003 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.apache.slide.store.impl.rdbms;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.sql.DataSource;
import org.apache.slide.common.NamespaceAccessToken;
import org.apache.slide.common.ServiceInitializationFailedException;
import org.apache.slide.common.ServiceParameterErrorException;
import org.apache.slide.common.ServiceParameterMissingException;
import org.apache.slide.store.ContentStore;
import org.apache.slide.store.LockStore;
import org.apache.slide.store.NodeStore;
import org.apache.slide.store.RevisionDescriptorStore;
import org.apache.slide.store.RevisionDescriptorsStore;
import org.apache.slide.store.SecurityStore;
import org.apache.slide.util.logger.Logger;
/**
* J2EE store implementation - implements the shared parts of
* the two (content, descriptors) J2EE stores for the new Indexed DB Schema.
*
* @author <a href="mailto:msmith@apache.org">Michael Smith</a>
* @author <a href="mailto:akumar@metatomix.com">Ashok Kumar</a>
* @author <a href="mailto:cmlenz@apache.org">Christopher Lenz</a>
* @author <a href="mailto:ozeigermann@c1-fse.de">Oliver Zeigermann</a>
* @version $Revision: 1.10.2.1 $
*/
public class J2EEStore
extends AbstractRDBMSStore
implements LockStore, NodeStore, RevisionDescriptorsStore, RevisionDescriptorStore, SecurityStore, ContentStore {
protected String LOG_CHANNEL = this.getClass().getName();
// ----------------------------------------------------- Instance Variables
/**
* Database connection source.
*/
protected DataSource ds = null;
/**
* Value of the datasource parameter.
*/
protected String datasource;
// -------------------------------------------------------- Service Methods
/**
* Initializes the data source with a set of parameters.
*
* @param parameters Hashtable containing the parameters' name
* and associated value
* @exception ServiceParameterErrorException Incorrect service parameter
* @exception ServiceParameterMissingException Service parameter missing
*/
public void setParameters(Hashtable parameters)
throws ServiceParameterErrorException, ServiceParameterMissingException {
String value = (String) parameters.get("datasource");
if (value == null) {
throw new ServiceParameterMissingException(this, "datasource");
}
datasource = value;
value = (String) parameters.get("tm-commits");
if (value != null) {
tmCommits = "true".equals(value);
}
super.setParameters(parameters);
}
/**
* Initializes data source.
* <p/>
* Occurs in two steps :
* <li>Datasource is looked up from the pool</li>
* <li>Creation of the basic tables, if they didn't exist before</li>
*
* @exception ServiceInitializationFailedException thrown if the data source
* has already been initialized before
*/
public synchronized void initialize(NamespaceAccessToken token) throws ServiceInitializationFailedException {
// XXX might be done already in setParameter
if (!alreadyInitialized) {
try {
// Loading and registering driver
getLogger().log("Retrieving datasource '" + datasource + "'", LOG_CHANNEL, Logger.INFO);
// Initialize database
Context initCtx = new InitialContext();
Context envCtx = (Context) initCtx.lookup("java:comp/env");
ds = (DataSource) envCtx.lookup(datasource);
} catch (ClassCastException e) {
getLogger().log(
"Loading and registering datasource " + datasource + " failed",
LOG_CHANNEL,
Logger.ERROR);
getLogger().log(e.toString(), LOG_CHANNEL, Logger.ERROR);
throw new ServiceInitializationFailedException(this, e.getMessage());
} catch (NamingException e) {
getLogger().log(
"Loading and registering datasource " + datasource + " failed",
LOG_CHANNEL,
Logger.ERROR);
getLogger().log(e.toString(), LOG_CHANNEL, Logger.ERROR);
throw new ServiceInitializationFailedException(this, e.getMessage());
} catch (Exception e) {
getLogger().log(
"Loading and registering datasource " + datasource + " failed",
LOG_CHANNEL,
Logger.ERROR);
getLogger().log(e.toString(), LOG_CHANNEL, Logger.ERROR);
throw new ServiceInitializationFailedException(this, e.getMessage());
} finally {
alreadyInitialized = true;
}
if (ds == null) {
getLogger().log("Datasource is null, can't initialize store");
throw new ServiceInitializationFailedException(this, "Null datasource from context");
}
}
}
protected Connection getNewConnection() throws SQLException {
return ds.getConnection();
}
}